Michael Tiemann

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Michael Tiemann at MySQL Conference 05 in 2005

Michael Tiemann is an American software developer and executive, serving[when?] as vice president of open source affairs at Red Hat, Inc.,[1][2] and former President of the Open Source Initiative.[3]


He earned a bachelor's degree from the Moore School of Electrical Engineering in 1986 at the University of Pennsylvania.[4]

He co-founded Cygnus Solutions in 1989.[5][6] His programming contributions to free software include authorship of the GNU C++ compiler and work on the GNU C compiler and the GNU Debugger.[7] Tiemann is featured in the 2001 documentary Revolution OS.[8] Opensource.com profiled him in 2014, calling him one of "open source's great explainers."[9]

He was the chief technical officer of Red Hat.[10] He served on a number of boards, including the Embedded Linux Consortium,[11] the GNOME Foundation advisory board,[12] and the board of directors of ActiveState Tool Corp.[13]


  1. ^ "Michael Tiemann, V.P. of Red Hat Open Source Affairs, Selected as City of Raleigh 2015 Environmental Awards Keynote" (Press release). City of Raleigh. December 26, 2014.
  2. ^ Tiemann, Michael. "Home page for Michael Tiemann". Archived from the original on 2002-01-03. Retrieved 2015-02-21.
  3. ^ Thank You Michael Tiemann!
  4. ^ Interview with Red Hat Vice President, Open Source Affairs - Michael Tiemann
  5. ^ FORTUNE VISITS 25 COOL COMPANIES: What has the computer revolution done for us lately?
  6. ^ Future of Cygnus Solutions: An Entrepreneur's Account, by Michael Tiemann (1999)
  7. ^ Stallman, Richard M. (February 1988). "GNUs Flashes, February 1988". GNU's Bulletin.
  8. ^ "About". Revolution OS.
  9. ^ Behrenshausen, Bryan (August 5, 2014). "How to think like open source pioneer Michael Tiemann". Opensource.com. Opensource.com. Retrieved December 19, 2015.
  10. ^ "Red Hat Executive Team". Red Hat. Archived from the original on 2003-10-03.
  11. ^ "Red Hat CTO Michael Tiemann Appointed to Embedded Linux Consortium Board of Directors" (Press release). Red Hat. June 21, 2000.
  12. ^ Veillard, Daniel (2003-03-13). "Minutes of the GNOME Board meeting March 11 2003". foundation-announce (Mailing list). Retrieved 2015-02-21.
  13. ^ "NY VC funds ActiveState" (Press release). ActiveState. 2000-09-25. ActiveState Board Member and Red Hat CTO Michael Tiemann

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